all: format code according to Go 1.19 rules

Go 1.19 started reformatting code in a way that makes it more obvious
how it will be rendered on pkg.go.dev. It gets it almost right, but not
entirely. Therefore, I had to modify some of the comments so that they
are formatted correctly.

src/syscall/errno.go

@@ -13,10 +13,11 @@ import "internal/itoa"
 // An Errno is an unsigned number describing an error condition.
 // It implements the error interface. The zero Errno is by convention
 // a non-error, so code to convert from Errno to error should use:
-//      err = nil
-//      if errno != 0 {
-//              err = errno
-//      }
+//
+//	err = nil
+//	if errno != 0 {
+//	        err = errno
+//	}
 type Errno uintptr
 
 func (e Errno) Error() string {

src/syscall/file_hosted.go

@@ -22,5 +22,6 @@ func Getwd() (string, error) {
 }
 
 // char *getcwd(char *buf, size_t size)
+//
 //export getcwd
 func libc_getcwd(buf *byte, size uint) *byte

src/syscall/proc_hosted.go

@@ -14,25 +14,31 @@ func Getpid() int  { return int(libc_getpid()) }
 func Getppid() int { return int(libc_getppid()) }
 
 // uid_t getuid(void)
+//
 //export getuid
 func libc_getuid() int32
 
 // gid_t getgid(void)
+//
 //export getgid
 func libc_getgid() int32
 
 // uid_t geteuid(void)
+//
 //export geteuid
 func libc_geteuid() int32
 
 // gid_t getegid(void)
+//
 //export getegid
 func libc_getegid() int32
 
 // gid_t getpid(void)
+//
 //export getpid
 func libc_getpid() int32
 
 // gid_t getppid(void)
+//
 //export getppid
 func libc_getppid() int32

src/syscall/syscall_libc.go

@@ -317,86 +317,107 @@ func splitSlice(p []byte) (buf *byte, len uintptr) {
 func libc_strlen(ptr unsafe.Pointer) uintptr
 
 // ssize_t write(int fd, const void *buf, size_t count)
+//
 //export write
 func libc_write(fd int32, buf *byte, count uint) int
 
 // char *getenv(const char *name);
+//
 //export getenv
 func libc_getenv(name *byte) *byte
 
 // int setenv(const char *name, const char *val, int replace);
+//
 //export setenv
 func libc_setenv(name *byte, val *byte, replace int32) int32
 
 // int unsetenv(const char *name);
+//
 //export unsetenv
 func libc_unsetenv(name *byte) int32
 
 // ssize_t read(int fd, void *buf, size_t count);
+//
 //export read
 func libc_read(fd int32, buf *byte, count uint) int
 
 // ssize_t pread(int fd, void *buf, size_t count, off_t offset);
+//
 //export pread
 func libc_pread(fd int32, buf *byte, count uint, offset int64) int
 
 // ssize_t lseek(int fd, off_t offset, int whence);
+//
 //export lseek
 func libc_lseek(fd int32, offset int64, whence int) int64
 
 // int open(const char *pathname, int flags, mode_t mode);
+//
 //export open
 func libc_open(pathname *byte, flags int32, mode uint32) int32
 
 // int close(int fd)
+//
 //export close
 func libc_close(fd int32) int32
 
 // int dup(int fd)
+//
 //export dup
 func libc_dup(fd int32) int32
 
 // void *mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset);
+//
 //export mmap
 func libc_mmap(addr unsafe.Pointer, length uintptr, prot, flags, fd int32, offset uintptr) unsafe.Pointer
 
 // int munmap(void *addr, size_t length);
+//
 //export munmap
 func libc_munmap(addr unsafe.Pointer, length uintptr) int32
 
 // int mprotect(void *addr, size_t len, int prot);
+//
 //export mprotect
 func libc_mprotect(addr unsafe.Pointer, len uintptr, prot int32) int32
 
 // int chdir(const char *pathname, mode_t mode);
+//
 //export chdir
 func libc_chdir(pathname *byte) int32
 
 // int chmod(const char *pathname, mode_t mode);
+//
 //export chmod
 func libc_chmod(pathname *byte, mode uint32) int32
 
 // int mkdir(const char *pathname, mode_t mode);
+//
 //export mkdir
 func libc_mkdir(pathname *byte, mode uint32) int32
 
 // int rmdir(const char *pathname);
+//
 //export rmdir
 func libc_rmdir(pathname *byte) int32
 
 // int rename(const char *from, *to);
+//
 //export rename
 func libc_rename(from, to *byte) int32
 
 // int symlink(const char *from, *to);
+//
 //export symlink
 func libc_symlink(from, to *byte) int32
 
 // ssize_t readlink(const char *path, void *buf, size_t count);
+//
 //export readlink
 func libc_readlink(path *byte, buf *byte, count uint) int
 
 // int unlink(const char *pathname);
+//
 //export unlink
 func libc_unlink(pathname *byte) int32
 

src/syscall/syscall_libc_darwin.go

@@ -14,10 +14,10 @@ import (
 // This function returns the error location in the darwin ABI.
 // Discovered by compiling the following code using Clang:
 //
-//     #include <errno.h>
-//     int getErrno() {
-//         return errno;
-//     }
+//	#include <errno.h>
+//	int getErrno() {
+//	    return errno;
+//	}
 //
 //export __error
 func libc___error() *int32
@@ -272,9 +272,11 @@ func Getpagesize() int {
 }
 
 // int pipe(int32 *fds);
+//
 //export pipe
 func libc_pipe(fds *int32) int32
 
 // int getpagesize();
+//
 //export getpagesize
 func libc_getpagesize() int32

src/syscall/syscall_libc_darwin_amd64.go

@@ -14,21 +14,26 @@ import (
 // It not needed on arm64.
 
 // struct DIR * buf fdopendir(int fd);
+//
 //export fdopendir$INODE64
 func libc_fdopendir(fd int32) unsafe.Pointer
 
 // int readdir_r(struct DIR * buf, struct dirent *entry, struct dirent **result);
+//
 //export readdir_r$INODE64
 func libc_readdir_r(unsafe.Pointer, unsafe.Pointer, unsafe.Pointer) int32
 
 // int stat(const char *path, struct stat * buf);
+//
 //export stat$INODE64
 func libc_stat(pathname *byte, ptr unsafe.Pointer) int32
 
 // int fstat(int fd, struct stat * buf);
+//
 //export fstat$INODE64
 func libc_fstat(fd int32, ptr unsafe.Pointer) int32
 
 // int lstat(const char *path, struct stat * buf);
+//
 //export lstat$INODE64
 func libc_lstat(pathname *byte, ptr unsafe.Pointer) int32

src/syscall/syscall_libc_darwin_arm64.go

@@ -8,21 +8,26 @@ import (
 )
 
 // struct DIR * buf fdopendir(int fd);
+//
 //export fdopendir
 func libc_fdopendir(fd int32) unsafe.Pointer
 
 // int readdir_r(struct DIR * buf, struct dirent *entry, struct dirent **result);
+//
 //export readdir_r
 func libc_readdir_r(unsafe.Pointer, unsafe.Pointer, unsafe.Pointer) int32
 
 // int stat(const char *path, struct stat * buf);
+//
 //export stat
 func libc_stat(pathname *byte, ptr unsafe.Pointer) int32
 
 // int fstat(int fd, struct stat * buf);
+//
 //export fstat
 func libc_fstat(fd int32, ptr unsafe.Pointer) int32
 
 // int lstat(const char *path, struct stat * buf);
+//
 //export lstat
 func libc_lstat(pathname *byte, ptr unsafe.Pointer) int32

src/syscall/syscall_libc_wasi.go

@@ -302,13 +302,16 @@ func Getpagesize() int {
 }
 
 // int stat(const char *path, struct stat * buf);
+//
 //export stat
 func libc_stat(pathname *byte, ptr unsafe.Pointer) int32
 
 // int fstat(fd int, struct stat * buf);
+//
 //export fstat
 func libc_fstat(fd int32, ptr unsafe.Pointer) int32
 
 // int lstat(const char *path, struct stat * buf);
+//
 //export lstat
 func libc_lstat(pathname *byte, ptr unsafe.Pointer) int32